src/base/bittorrent/peeraddress.cpp

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2019  Vladimir Golovnev <glassez@yandex.ru>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  *
  19  * In addition, as a special exception, the copyright holders give permission to
  20  * link this program with the OpenSSL project's "OpenSSL" library (or with
  21  * modified versions of it that use the same license as the "OpenSSL" library),
  22  * and distribute the linked executables. You must obey the GNU General Public
  23  * License in all respects for all of the code used other than "OpenSSL".  If you
  24  * modify file(s), you may extend this exception to your version of the file(s),
  25  * but you are not obligated to do so. If you do not wish to do so, delete this
  26  * exception statement from your version.
  27  */
  28
  29 #include "peeraddress.h"
  30
  31 #include <QString>
  32
  33 using namespace BitTorrent;
  34
  35 PeerAddress PeerAddress::parse(const QStringView address)
  36 {
  37     QList<QStringView> ipPort;
  38
  39     if (address.startsWith(u'[') && address.contains(u"]:"))
  40     {  // IPv6
  41         ipPort = address.split(u"]:");
  42         ipPort[0] = ipPort[0].mid(1);  // chop '['
  43     }
  44     else if (address.contains(u':'))
  45     {  // IPv4
  46         ipPort = address.split(u':');
  47     }
  48     else
  49     {
  50         return {};
  51     }
  52
  53     const QHostAddress ip {ipPort[0].toString()};
  54     if (ip.isNull())
  55         return {};
  56
  57     const ushort port {ipPort[1].toUShort()};
  58     if (port == 0)
  59         return {};
  60
  61     return {ip, port};
  62 }
  63
  64 QString PeerAddress::toString() const
  65 {
  66     if (ip.isNull())
  67         return {};
  68
  69     const QString ipStr = (ip.protocol() == QAbstractSocket::IPv6Protocol)
  70         ? (u'[' + ip.toString() + u']')
  71         : ip.toString();
  72     return (ipStr + u':' + QString::number(port));
  73 }
  74
  75 bool BitTorrent::operator==(const BitTorrent::PeerAddress &left, const BitTorrent::PeerAddress &right)
  76 {
  77     return (left.ip == right.ip) && (left.port == right.port);
  78 }
  79
  80 std::size_t BitTorrent::qHash(const BitTorrent::PeerAddress &addr, const std::size_t seed)
  81 {
  82     return qHashMulti(seed, addr.ip, addr.port);
  83 }